On Jan 2, 2013 4:59 PM, "Stef Bon" <<a href="mailto:stefbon@gmail.com">stefbon@gmail.com</a>> wrote: > > Hi, > > sorry for the offtopic question here, but I do not know a better place for it. > > I'm building a lockmonitor. I thought that would be just as easy as with the /proc/self/mountinfo "file". > > But that is not the case. It's not pollable, like the mountinfo fle is. > I've looked into the code of the kernel, (fs/locks.c versus fs/proc_namespace.c) and there it's abvious. The file_operations with the locks file misses the .poll operation. Hmmm, regardless, the file is pollable. findmnt polls it (systemd as well?) -- you need to watch for POLLERR events. > Now first howto implement this? Someone a hint? > > The mountinfo poll function is related to changes in namespace, but for the locks that is different I guess. That "changes" when a lock has been set or released. > > And by the way, isn't this locks file not namespace specific? > > Stef > > _______________________________________________ > systemd-devel mailing list > <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a> >